for me, always gotta go with double socks. asics is the best as the inside pair. get a very thin one that breathes and transfers moisture well. kensei or the kayano (may have mispelled their names). I usually have a thicker pair on the outside, sometimes nike, under armour, or zensah. not as important, as long as it's comfortable, breathes well, and is not cotton. the key has always been the inside pair.. has really helped me tremendously in avoiding blisters. i used to have really bad and nasty blisters.